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Released on:
Searching in: Software Updates
ID: SU04L00104
Released on:  2014-04-09
Last update: 2014-04-09
NoMachine version 4.2.19 now available

Luxembourg, April 9th, 2014

NoMachine makes available updated packages to prevent a vulnerability issue in OpenSSL 1.0.1 (CVE-2014-0160) which can allow steal sensitive information from connected client or server.

To prevent any possible attack, NoMachine has replaced all the SSL host certificates on its update repositories. Due to this, automatic updates for NoMachine installations prior to 4.2.19 are not possible.

NoMachine strongly advises its 4.x users to download the 4.2.19 packages from the web site and apply the following procedures:

Users of the free to use NoMachine version can uninstall and then install the 4.2.19 package or follow instructions below.

Administrators who want to update their installation should download the 4.2.19 package and proceed with a manual update. Moreover, they should replace the SSL certificate used for the NoMachine Network Daemon (nxd) on the server host. In the case of Cloud Server, administrators should replace the certificate for the NoMachine Web Server (nxhtd). If a multi-node environment is set, it's also necessary to replace the server-node key pair on each remote node.

Instructions for replacing certificates and keys are available here:


Supported Platforms

Windows 32-bit/64-bit XP/Vista/7/8

Mac OS X Intel 64-bit 10.5/10.6/10.7/10.8/10.9

Linux 32-bit and 64-bit
Red Hat Enterprise 4/5/6
SLES 10/11
Open SUSE 10.x /11.x/12.x
Mandriva 2009/2010/2011
Fedora Core 10/11/12/13/14/15/16/17/18
Debian GNU Linux 4.0 Etch/5.0 Lenny/ 6.0 Squeeze/ 7.0 Wheezy
Ubuntu 8.04 Hardy Heron/8.10 Intrepid Ibex/Ubuntu 9.04 Jaunty Jackalope/
9.10 Karmic Koala/10.4 Lucid Lynx/10.10 Maverick/11.04 Natty/11.10 Oneiric/12.04 Precise Pangolin

Download NoMachine Packages

You can download the latest packages suitable for your Operating System from the NoMachine Web site at the following URL:

Or from your Customer Area if you are a registered customer.

Manual package update

Please follow the instructions to update your installation manually:

On Windows:

- Download and save the EXE file.
- Double click on the NoMachine executable file.
- As for the installation, the Setup Wizard will take you through all steps necessary for updating NoMachine.

On Mac OS X:

- Download and save the DMG file.
- Double-click on the Disk Image to open it and double-click on the NoMachine program icon.
- As for the installation, the Installer will take you through through all steps necessary for updating NoMachine.

On Linux:

You can use the graphical package manager provided by your Linux distribution or update NoMachine by command line by following instructions below.
If you don't have the sudo utility installed, log on as superuser ("root") and run the commands without sudo


- Download and save the RPM file.
- Update your NoMachine installation by running:

# rpm -Uvh <pkgName>_<pkgVersion>_<arch>.rpm


- Download and save the DEB file.
- Update your NoMachine installation by running:

$ sudo dpkg -i <pkgName>_<pkgVersion>_<arch>.deb


- Download and save the TAR.GZ file.
- Update your NoMachine installation by running:

$ cd /usr
$ sudo tar xvzf <pkgName>_<pkgVersion>_<arch>.tar.gz
$ sudo /usr/NX/nxserver --update

If you are installing Enterprise Client or Node run respectively:

$ sudo /usr/NX/nxclient --update
$ sudo /usr/NX/nxnode --update


Installation and configuration guides for the NoMachine products are available at:

The NoMachine Development Team